Dies for making shovels



(No Model.)

DIES FOR MAKING- SHOVEI'LS. No. 260,662. Patented July 4, 1882.

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WILLIAM OHISHOLM, OF CLEVELAND, OHIO.

DIES FOR MAKING SHOVELSW.

SPECIFICATION forming part of Letters Patent No. 260,662, dated July 4, 1882..

' Application filed March 31, 1882. (N0 model.)

To all whom it may concern Be it known that I, WILLIAM UHISHOLM, of Cleveland, in the. county of Ouyahoga and State of Ohio, have invented certain new and useful Improvements in Gage-Dies for Making Shovels; and I do hereby declare that the following is a full, clear, and complete description thereof.

The nature of my improvement in dies for making shovels relates to a gage mechanism connected with the said dies; and it consists ofa gage-pin pivoted to the shank of the die, and ad j usting-slide and set-screw, also connected with the shank, as more fully hereinafter set forth.

The purpose of the said improvement is to guide or gage each successive plate for the shovel with sufficientaecuracy that the blade and shank thereof will be all of a uniform shape and prevent any lateral deflection or displacementin the line of their length, whereby the blank plates uniformly cover the die and shan k, causing a regular proportion and symmetry in all parts of the article. The improvement may be employed in the manufacture of spades, scoops, forks, and other similar articles for the same purpose. Reference is only more particularly made to shovels as a leading example of this class of implements.

For a more full and complete description of the said improvement and its operation refercnce will be had to the following specification, and to the annexed drawings, making part of the same, in which Figure 1 is a plan view ofthe lower die with the shovel in place. Figs. 2 and 3 are vertical longitudinalsections of the upper and lower dies in the direction of the line at at, Fig. 1. Figs. 4 and 5 are back end views of the upper and lower dies. Fig. 6 is an end view of the dies and shank together. Fig. 7 will be referred to in description hereinafter.

Like letters of reference refer to like parts in the several views.

The means for working the dies are not shown, as they may be operated by any of the ordinary devices employed for such purposes.

In the drawings, A, Fig. 1, represents a face view of the lower die, and B the shovel in place thereon. To the shank G of said die is secured by bolting or otherwise the bracket D, Figs. 1

and 3, to which is threaded the adjusting setscrew E, which is in line, or nearly so, with the slide-gage F, the adjusting-screw being brought in contact with one end of the gage F, and the other end terminating in a slot, G, in which is pivoted, at H, the adjustable gagepin I, Figs. 6, 7.

In the upper die,- J, is a slot, K, in which the pin enters when the dies are brought in contact to swage the shovel-blank into shape. The upper die is shaped to form a counterpartto the lower die, and when the two dies are in contact the shank L of the upper die laps down on the shank O of the lower die, as seen in Fig. 6, with the strap M of the shovel between. By this means the strap is formed at the time the plate is being swaged into shape by the upper and lower sections of the dies for forming the blade. Before the blank plate is subjected to the dies it is trimmed to the required shape and the rivet-holes N P are made in the strap, Fig. 1. When the plate is heated to the proper degree it is placed upon the lower die, A, so that the gage-pin I will pass through the hole N, as indicated in Fig. 3.

The plate is to be pushed in the direction of the arrow until the pin is in the position of I, against the adjustable gage F, which isin conact with the set-screw E, the plate being in the line 0. While in this position the upper die, J, is forced down on the lower one, and as soon as it reaches the plate it will begin to bend and curve it into a shovel shape, as seen at B, Fig. 3. In this changing ofthe flat blank to the configuration of a shovel, spade, or scoop the metal, by the action of the dies, will stretch and have a sliding movement in the line of its length, and will draw the gage-pin from I in the direction of I, Fig. 3. As the upper die is brought in contact with the plate the pin I enters the slot K in the shank thereof. By this arrangement of the gage mechanism, in connection with the dies, the suc cessive plates are all gaged alike in the direction of their length, and as the gage-pin has no lateral movement it gages and controls the metal in its width or lateral direction with such accuracy as to insure a uniform distribution of the metal and symmetry to the implement.

Without this improvement the heated metal blank,while being subjected to thedies, is lia ble to bedrawn and stretched, both in theline and arranged to extend through a hole in the of its length and laterally, so unequally as to strap of the article, for gaging the plate to inmaterially injure the relative proportions and sure a uniform distribution of metal when bea uniform distribution of metal in the shovel, ing swaged and compressed into shape and 5 &c. By the arrangement of the sliding gage symmetry to theimplement when finished, sub- 0 F and adjusting set-screw E more or less lonstantially as described.

gitudinal vibration may be given to the pin I 2. In dies for making shovels and other simiby sliding the gage F to or from the pin and lar implements, an adjustable gage-pin havsetting the screw in contadt with said slide, as ing a movementin the line of the shovel length,

10 seen in Fig. 3. By this means it can be made in combination with asliding gagein the shank 5 conformable to various locations of the hole of the die and the adjusting-screw, arranged N in the shanks of different shovels, and more in relation to said gage and pin substantially or less movement may be given to the pin in as described, and for the purpose set forth. the line 0, as may be required for the shovel, 3. In combination with the dies for making 15 by adjusting the slide-gage F and set-screw E, shovels, scoops, &c., a pivoted gage-pin,E, and 40 or their equivalents, in the manner described. adjusting devices for determining the move- Instead of the pin I being hinged or pivoted ment of said pin when in the hole of the shank at H, it may have a sliding or reciprocating and while the blank is being formed into shape movement; but the axle or vibratory moveby said dies, substantially as described.

20 ment of the pin, as described, is preferred. In testimony whereof I affix my signature in 4 5 I What I claim as my invention, and desire to presence of two witnesses. secure by Letters Patent, is- WILLIAM CHISHOLM.

1. In a shovel, scoop, or spade forming die, Witnesses: 1 a pivoted pin in the shank thereof, having an J. H. BURRIDGE,

2 5 axial movement in the line of the shovel length, W. H. BURRIDGE. 

